Draw-bar for railway-cars



(N0-Model.)

A. B. PULLMAN. Draw B21q forRailWay Gars.

No, 239,272. 4 Patented-March 22,1881.

UNITED STATES PATENT EEICE.

ALBERT B. PULLMAN, F CHICAGO, ILLINOIS.

DRAW- BAR FOR RAI LWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 239,272, dated March22, 1881.

Application filed October 18, 1880.

, fully set forth.

Figure 1 is a plan ofthe bottom of sections of two coupled cars, showingtheir position in passing a curve of short radius. Fig. 2 is an enlargedperspective view of my improved draw-bar inverted. Fig. 3 is a verticalcentral longitudinal section through the front end of the draw-bar. Fig.4 is a like section of the opposite end of the same.

ln the accompauyin g drawings, which form a part of this specification,A represents the body-bolster of a car, and B the platforms, rounded attheir adjoining ends, as shown in Fig.1 to allow the cars to pass aroundcurves of short radius.

O isthe king-bolt or draw-pin with which each car is provided at eachend thereof, and to which the coupling device hereinafter de` scribed ispivoted.

The draw-bar is constructed as follows:

D is a plate, the free end of which is perforated to engage with theking-bolt, while the opposite end is provided with a lip, a, whichengages with a suitable slot in the plate E, which is secured to thefront end of the plate D by means of the bolts and nuts b.

F are two yokes secured to the under side of the plate E, to inclose andhold in position the resistance-plates c, between which is placed Vthecoiled spring d.

G is the draw-bar proper, which is preferably made ofiron with a woodenfilling, H. rI`he rear end of the draw-bar Aterminates in a rect-yangular loop, I, which has a longitudinal movement between the yokes F.A bolt, e, passes through the rear vertical end of this loop and throughthe resistance-plates c and the coilspring, to hold the parts together,the drawbar being controlled in its longitudinal movements bytheoperation of the coil-spring in the usual manner in constructions for asimi- (No model.)

lar openi n g,f, longitudinally through the saine,

sufficiently large to allow the coupling-bar K to freely enter, with butlittle play, and pass through until the end of such` bar impingesagainst the stop g, in which position it is secured by the coupling-pin11 which passes through the head and bar for that purpose.

A sector-support, L, is suitably suspended below the platform, near itsfront end, and is rigidly secured thereto by proper bolts, and itsoffice is to support the front end of the drawbar, and at the same timeto allow of a radial movement of this end of the draw-bar to the rightor left, as occasion may require, the kingholt being the aXis of suchmovement.

A spring, M, is secured to the under side of the draw-bar, and to thefrontend ofthis spring is secured the shoe N, which travels, in theradial movement of the d raw-bar, upon the upper face of the sector.

The coupling-bar K is a rigid bar, litting into the head of thedraw-bar, with very little play therein, and near each of its ends it isprovided with a hole for the coupling-pin, and so arranged that when twocars are coupled together the ends of the heads of the draw-bar arebroughtinto close and rigid juxtaposition, as shown in Fig. 1.

By this construction and operation all the advantages hereinbeforerecited are obtained 5 and it will, perhaps, be needless to add thateach end of the car is provided with the coupling described.

What I claim as my invention is 1. In combination with a car-platformhaving pendent therefrom a sector, a draw-bar provided with a spring andshoe, substantially as and for the purpose specified. l

2. The combination, with the perforated pla-te D, pivoted to theplatform, and slotted plate E, secured to the front end of said plateand provided with the yokes F, of the drawbar G, terminating vin therectangular loop I, bolt e, resistance-plates c, and coiled spring d,substantially as described, and for the purpose set forth. y

3. The combination, with the pivoted perforated plate D and slottedplate E, secured thereto and provided with the yokes F, of the ICOdraw-bar G, having the end loop, I, resistaneeplates c, bolt e, springd, spring M, provided l with shoe N, and seetonplate L, substantially asdescribed, and for the purpose set forth.

4. The combination, with the perforated pivoted plate D and slottedplate E, secured thereto and provided with the yokes F, of the drawbarG, provided with the loop I and stop g, rigid coupling-bar K,resistance-plates c, and spring; cl, substantially as described, :md forthe purpose set forth.

5. The Coupling-bar Gr, made of iron, with a. Wooden lling, H, stop g,loop I, and spring M, carrying on its free end the shoe N, substantiallyas described, and for the purpose set 15 forth.

ALBERT B. PULLMAN.

Witnesses ALBERT WAHL, H. S. SPRAGUE.

